It also depends when you got into the IIT.
My dad got into an IIT and it was basically like you describe it. I got into IIT and it was like how this article describes it. It’s also gotten easier since I took the JEEs because they’ve quadrupled the number of seats available by enlarging the existing IITs and making a bunch of new colleges IITs, so I suspect it’s easier now than when I was taking those exams.